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Species Account for Xysticus acerbus

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Xysticus acerbus  Thorell, 1872
Araneae: Thomisidae

Xysticus acerbus male Copyright: Peter Harvey

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Essex RDB: Listed
Threat: Essex Endangered

Records: 19
First Record: 1880
Latest Record: 2019

1992-on hectads: 2
Pre-1992 hectads: 1
Total hectads: 3
Additional Phenology Data


Xysticus acerbus male
Xysticus acerbus male

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Taxonomic group: spiders (Araneae) - County data   
National map for Xysticus acerbus on Spider and Harvestman Recording Scheme website
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Essex Red Data List comment
Old record for Epping Forest

Species text
This crab spider appears to be scarce, with scattered records in the south of Britain. At most sites only a few specimens have been found, but the spider may be slightly under-recorded because it matures early in the season. The spider occurs in a fairly wide range of grassland habitats, and has also occasionally been found on heathland and coastal under-cliff in Dorset. Both sexes are adult in April and May. In Essex it was found in 2005 in large numbers at a site in Basildon. The only previous county record had been from Epping Forest during the 19th century, found amongst specimens labelled as X. luctuosus in the collections of O.P.-Cambridge and A.R. Jackson (Locket, Millidge & Merrett, 1974). References

Species text last edited on Tue Mar 20th 2007 by user 3


Broad Habitat Data (based on 1 records with habitat information)

no subhabitat data available

Structural Habitat Data (based on 1 records with structural habitat information)

Habitat Detail and Method (based on 19 records with habitat detail and method information)

Recorded management for locations with Xysticus acerbus

Recorded substrate and hydrology for locations with Xysticus acerbus

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